low level protocol, implicit transactions , "idle in transaction" issue

Dear pgpool team

This is our setup :

Quarkus (Agroal) -> pgbouncer-1.25.1 -> pgpool 4.7.2 -> pgsql 18.3

We noticed that with no explicit transactions, at start up SQL queries
(application_name, search_path, etc), we experienced random 'idle in
transaction' connections from pgpool -> pgsql.

Bypassing pgpool, i.e. pgbouncer -> directly to pgsql , the issue was
not there.

So, bypassing the past excellent relation and collaboration I had with
you guys,  I got into the temptation to use our local AI cli agent
(against our local GLM-5.2-NVFP4 ) from within pgpool 4.7.2 code base
and try to see what's going on.

So it gave it a thorough examination, looked at past issues, etc and it
came up with a patch. It applied the patch , compiled and installed, and
I only had to restart pgpool.

The problem seems gone .

I attach the patch. Please review and tell me your thoughts. I Know I
should maybe go the classic route, mailing list, advice from you, full
logging, etc till I demo the issue, but the time is pushing us hard.

Thank you!